Audio Converter

Upload your audio files by dragging them in or clicking "Choose Files". Select your target format (MP3, WAV, FLAC, AAC, OGG, M4A) and click convert. The audio conversion runs entirely in your browser — fast, private, and completely free.

FastConvert supports converting between popular audio formats including MP3, WAV, FLAC, AAC, OGG, and M4A. You can also extract audio from video files (MP4, MOV, MKV, etc.) and convert it to any audio format.

Yes. Upload multiple audio files at once and convert them all in a single batch. Each file gets its own download button, and you can grab all converted files as a ZIP archive.

Absolutely. Your audio files are processed entirely in your browser and never sent to any server. This means your music, recordings, podcasts, or audiobooks remain 100% private — no uploads, no servers, no tracking.

It depends on the format. FLAC and WAV are lossless and preserve full quality. MP3, AAC, and OGG use efficient compression with minimal audible loss. FastConvert uses high-quality encoding to maintain the best possible sound.

Yes. FastConvert supports audio files up to 1GB. Since processing happens locally, you can convert hour-long podcasts or full audiobook chapters without uploading anything.

Yes. Upload an MP4, MOV, MKV, or other video file directly here, and FastConvert can extract the audio track and save it as MP3, WAV, FLAC, or any other audio format. Perfect for ripping audio from interviews, lectures, or recorded content.

Yes. After the FastConvert page loads, audio conversion works entirely offline because everything runs in your browser. You don't need an active internet connection during the conversion.